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The YM2413, also known as the OPL3-L or simply OPL, is an audio chip developed by Yamaha Corporation. It was widely used in the 1980s and 1990s for generating music and sound effects in various devices, most notably in computers, video game consoles, and arcade machines. The chip was capable of producing high-quality audio for its time, using a form of audio synthesis called FM synthesis (Frequency Modulation synthesis). This technology allowed for the creation of complex sounds and textures using a limited number of audio channels.